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Finding the Fourth Proportional to 434,551.60, 651,803.10 and 135,029.80

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Solution

The fourth proportional to 434,551.60, 651,803.10 and 135,029.80 is: 202,537.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,551.60 : 651,803.10 = 135,029.80 : x
  2. Step 2: Convert to fraction form
    434,551.60/651,803.10 = 135,029.80/x
  3. Step 3: Cross multiply
    434,551.60x = 651,803.10 × 135,029.80
  4. Step 4: Simplify right side
    434,551.60x = 88,012,842,232.38
  5. Step 5: Solve for x
    x = 88,012,842,232.38/434,551.60
  6. Step 6: Final answer
    x = 202,537.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.